Use local marker and scan services only once

abra

@@ -503,14 +503,21 @@ output_version_summary() {
   echo "  Versions:"
 
   CONSENT_TO_UPDATE=$abra___update
-  IS_AN_UPDATE="false"
-  UNABLE_TO_DETECT="false"
+
+  local -a IS_AN_UPDATE="false"
+  local -a UNABLE_TO_DETECT="false"
+  local -a CHECKED_SERVICES # array
 
   IFS=':' read -ra COMPOSE_FILES <<< "$COMPOSE_FILE"
   for COMPOSE in "${COMPOSE_FILES[@]}"; do
     SERVICES=$($YQ e '.services | keys | .[]' "${APP_DIR}/${COMPOSE}")
 
     for SERVICE in $SERVICES; do
+      if [[ "${CHECKED_SERVICES[@]}" =~ "${SERVICE}" ]]; then
+        debug "already inspected ${STACK_NAME}_${SERVICE} for versions, skipping..."
+        continue
+      fi
+
       filter="{{index .Spec.Labels \"coop-cloud.$STACK_NAME.$SERVICE.version\" }}"
       label=$(docker service inspect -f "$filter" "${STACK_NAME}_${SERVICE}" 2>/dev/null)
 
@@ -532,11 +539,11 @@ output_version_summary() {
           IS_AN_UPDATE="true"
           echo "      to de deployed: $(tput setaf 1)$app_version ($app_digest)$(tput sgr0)"
         fi
-
       else
         warning "Unable to detect deployed version of ${STACK_NAME}_${SERVICE}, please proceed with caution"
         UNABLE_TO_DETECT="true"
       fi
+      CHECKED_SERVICES+=("$SERVICE")
     done
   done